Final answer:
Linear functions have equal factors for equal intervals.
Step-by-step explanation:
An equal interval means that the difference between any two consecutive values is the same. In other words, the gap between the numbers remains constant. When it comes to mathematical functions, linear functions have equal factors for equal intervals.
For example, if we have a linear function y = 2x, for every increase in x by 1 unit, the corresponding increase in y is also 2 units. This means that the factors (y-values) increase in a constant manner for equal intervals (x-values).